As of 2006, instructor certifications received by the following groups are certified by the National Committee for Certifying Agencies (NCCA): National Strength and Conditioning Association, American College of Sports Medicine, American Council on Exercise, National Council on Sports & Fitness, National Academy of Sports Medicine, and the National Federation of Professional Trainers. CPR indicates cardiopulmonary resuscitation; MC, multiple choice; CEC, continuing education credits, CEU, continuing education unit.